Haskell is quite standardized.
Most people are using
Haskell 2010, the 8.0.1 version. There have in the past been
a number of different developers of Haskell tools, but currently the
scene is dominated by
the Glasgow Haskell
Compiler, which is included in the package mentioned below.
The starting point for mosk Haskell related information is
the Haskell website.
you will find multiple options for what to download. For
Fall 2017, I suggest getting a Haskell platform; and under
platforms, choosing a minimal platform.
Lisp is a very old programming language that has split into a
number of variants. Two common ones are Common Lisp and
Scheme. The latter is more purely functional and fully
Racket is a flavour of Scheme, or more accurately, a system
that provides a number of programming languages, including
fully standard-compliant Scheme, and Racket, which is an
industry ready research variant on Scheme.